Files
phabricator/src/applications/diffusion/query/diff/git/DiffusionGitDiffQuery.php
David Reuss 4e900c096f Convert "falsey" binary hunks if we have a repository encoding
Summary:
This adds an encoding detail to the repository, so we can attempt to
convert hunks previously detected as binary.

We also add the encoding information to the arcanist projectinfo
API so we can pull the information if we have it when uploading changes
via arc.

Test Plan:
Changed encoding through the edit UI, and saw "This is binary file", and
changed it back and saw the correct output from the diff.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, epriestley

Differential Revision: 1009
2011-10-28 08:04:57 -07:00

101 lines
2.9 KiB
PHP

<?php
/*
* Copyright 2011 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
final class DiffusionGitDiffQuery extends DiffusionDiffQuery {
protected function executeQuery() {
$drequest = $this->getRequest();
$repository = $drequest->getRepository();
if (!$drequest->getRawCommit()) {
$effective_commit = $this->getEffectiveCommit();
if (!$effective_commit) {
return null;
}
// TODO: This side effect is kind of skethcy.
$drequest->setCommit($effective_commit);
} else {
$effective_commit = $drequest->getCommit();
}
$options = array(
'-M',
'-C',
'--no-ext-diff',
'--no-color',
'--src-prefix=a/',
'--dst-prefix=b/',
'-U65535',
);
$options = implode(' ', $options);
try {
list($raw_diff) = execx(
"(cd %s && git diff %C %s^ %s -- %s)",
$repository->getDetail('local-path'),
$options,
$effective_commit,
$effective_commit,
$drequest->getPath());
} catch (CommandException $ex) {
// Check if this is the root commit by seeing if it has parents.
list($parents) = execx(
'(cd %s && git log --format=%s %s --)',
$repository->getDetail('local-path'),
'%P', // "parents"
$effective_commit);
if (!strlen(trim($parents))) {
// No parents means we're looking at the root revision. Diff against
// the empty tree hash instead, since there is no parent so "^" does
// not work. See ArcanistGitAPI for more discussion.
list($raw_diff) = execx(
'(cd %s && git diff %C %s %s -- %s)',
$repository->getDetail('local-path'),
$options,
ArcanistGitAPI::GIT_MAGIC_ROOT_COMMIT,
$effective_commit,
$drequest->getPath());
} else {
throw $ex;
}
}
$parser = new ArcanistDiffParser();
$try_encoding = $repository->getDetail('encoding');
if ($try_encoding) {
$parser->setTryEncoding($try_encoding);
}
$parser->setDetectBinaryFiles(true);
$changes = $parser->parseDiff($raw_diff);
$diff = DifferentialDiff::newFromRawChanges($changes);
$changesets = $diff->getChangesets();
$changeset = reset($changesets);
$this->renderingReference =
$drequest->getBranchURIComponent($drequest->getBranch()).
$drequest->getPath().';'.
$drequest->getCommit();
return $changeset;
}
}